Add a small delay to waiting for animations to cope with async threads sometimes misbehaving.

RIGS/test_functional.py

@@ -862,4 +862,7 @@ class animation_is_finished(object):
     def __call__(self, driver):
         numberAnimating = driver.execute_script('return $(":animated").length')
         finished = numberAnimating == 0
-        return finished
+        if finished:
+            import time
+            time.sleep(0.1)
+        return finished